3M (MMM) Proxy filing summary

Executive summary

• Annual shareholder meeting scheduled for May 12, 2026, to be held exclusively online, allowing virtual participation and voting.

• Shareholders as of March 17, 2026, are eligible to vote on key proposals impacting business growth and financial strength.

• Voting can be conducted online or by phone, with deadlines of May 10 for plan shares and May 11 for common shares.

• Materials provided include the Notice of Annual Meeting, Proxy Statement, and 2025 Annual Report.

Voting matters and shareholder proposals

• Shareholders are encouraged to review and vote on proposals presented at the annual meeting, directly influencing company direction.

• Voting instructions and access to meeting documents are provided to facilitate informed decision-making.

Shareholder rights and capital structure

• Shareholders can participate, vote, submit questions, and examine the list of shareholders of record during the virtual meeting.

• Multiple types of shares, including common, 401K, and ESOP, are represented and eligible for voting.